I found this thread on the Forum claiming the SRT6 and perhaps N/A (??) was detuned to output less performance??
https://www.crossfireforum.org/forum...330-349-a.html


If that is true and the engines are exactly identical it would be a computer "de-tune" and therefore the ECU mapping would be different on both cars to keep the Xfire in check compared to the SLK!
I feel like making the Crossfire appear slower made no sense even from a marketing standpoint as the Xfire was introduced in 2004. Even if the Xfire would have had better numbers than the SLK it really didn't matter as 2005 the new SLK with overhauled design and engine was released so it was two different cars from there on out.
I mean, not that it really matters as I love my N/A just the way it is and with the performance upgrades I did but at the same time it is just interesting to know the real output!


What have I learned from this thread? Take HP claims with a grain of salt as it seems car manufacturers can claim just about anything on paper!